Feshbach resonances in a strictly two-dimensional atomic Bose gas

被引：4

作者：

Rajagopal, KK ^{[1
]}

Vignolo, P ^{[1
]}

Tosi, MP ^{[1
]}

机构：

[1] Scuola Normale Super Pisa, Classe Sci, I-56126 Pisa, Italy

来源：

PHYSICA B-CONDENSED MATTER | 2004年 / 353卷 / 1-2期

关键词：

bose gases; low dimensional; density profiles;

D O I：

10.1016/j.physb.2004.09.001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We discuss the atom-atom scattering problem across a Feshbach resonance in a two-dimensional dilute Bose gas at zero temperature, in the limit where the s-wave scattering length exceeds the width of the vertical confinement. We determine a tunable coupling-strength parameter and by controlling it we evaluate how the condensate wave function spreads out with increasing atom-atom repulsions. We also discuss the stability of the condensate in the magnetic-field regime where the coupling has become attractive. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：59 / 64

页数：6